Common maintenance methods for packaging machines

Commonly used maintenance methods for packaging machines The intention of the maintenance of packaging machines is to ensure the accuracy of the mechanical seal requirements and normal operations of the packaging machinery and equipment, and to extend the service life of the packaging machine. The commonly used maintenance of packaging machines mainly includes the maintenance of conflict pairs, and frequent inspections of the joints and fastening parts. 1. Maintenance of the conflict pair of the packaging machine The so-called conflict pair mainly refers to the touch surface of the two moving parts that are mechanically sealed to each other. For example, the two meshing tooth surfaces, the touch surface between the sliding block and the guide rail in the gear transmission, the touch surface between the outer surface of the sliding bearing inner ring and the shaft, and the outer ring of the rolling bearing and the ball (roller), the inner ring and the The mechanical shaft seals of the balls (rollers) are all conflicting pairs. These touch surfaces continue to conflict with each other during operation. If certain maintenance measures are not adopted, these touch surfaces will be worn out, reducing the accuracy, and then reducing the operating function of the packaging machine, and even seriously affecting the entire packaging machine equipment. Normal operation, so the maintenance of conflicts is particularly important. (1) Always adhere to the neatness of the conflict surface of the packaging machine. Because of the wear of the touch surface of the conflict pair during operation, there are often fine metal chips sticking to the surface, and the working environment is unclean, and there are dirt or dust accumulated on the conflict surface. Accumulated inches, if it is not arranged in time, it will damage the surface finish of the conflict pair, and seriously damage the entire parts. Especially in high-speed operation, the conflict heat will increase sharply due to the increase of the conflict resistance, and then accelerate the wear and tear. The destruction of the conflict vice. Therefore, it is very important to clean conflicts often or regularly. Commonly used cleaning agents are alcohol, gasoline, kerosene, and diesel. The cleaning method is to immerse the parts in a cleaning agent first, and then wash them with a brush. (2) Clean the smooth system of the packaging machine in order to reduce the abrasion of the friction surface, usually should have outstanding smoothness. Because of the influence of equipment operating conditions, operating environment, and impurities in the lubricating oil, the oil piping of the lubricating system is simply blocked or the oil supply equipment is damaged. Therefore, in order to ensure the normal operation of the smooth system, it is necessary to clean it frequently, dredge the oil holes, pipes, etc., and fill the oil cup with smooth oil. For normal operation, always clean, dredge the oil holes, pipes, etc., and fill the oil cup with smooth oil. (3) Adjust the gaps between the conflicting parts of some packaging machines. For some conflicting parts of the packaging machines, the gap between the touch surfaces can be adjusted in order to achieve more aspirational touch conditions. When the equipment is delivered and used, these gaps are usually adjusted, but after a period of time when the packaging machine is used for a period of time, the gaps will change due to load, vibration, etc., in order to ensure the requirements of touch accuracy, it is necessary to adjust. For example, the gap between the sliding plate (block) and the guide rail should be adjusted by the movement of the wedge iron (inlay), the axial and radial runout gaps of the cylindrical roller bearing can be adjusted by the pressure plate of the outer ring of the bearing in the axial direction. mobile. (4) The sealing ring often used in the pressure adjustment of the sealing ring of the packaging machine is usually a rubber sealing ring with a skeleton or without a skeleton. Its primary effect is to seal oil and dust. Because of long-term conflict, there will be different degrees of wear when touching the surface, and the sealing ring itself will loosen, which will affect the sealing effect. Therefore, it is necessary to tighten the pressure screw to increase the pressure of the sealing ring, so that the gap between the sealing ring and the shaft surface is reduced, and then the sealing effect is achieved. 2. Frequent checking of connecting parts and fastening parts. A complete packaging machine equipment is connected by organic installation of various parts, and each part is installed by various parts through bolts, nuts, keys and other fasteners. Connected. After the equipment has been running for a period of time, various parts are subjected to various loads and forces. Therefore, these parts and components will also appear loose at the joints. If you do not check the tightening or interchange the fasteners in time, the equipment will be damaged. Therefore, it is important to always check the connection parts of the packaging machine. For example, fans and water pumps operating at high speeds will oscillate due to unbalanced operations. The oscillations are very simple to loosen the fasteners. In gear transmission, always check the edge connection between the gear and the shaft, because the effect of the torque will cause The loosening of the key or the deformation of the keyway requires correction of the keyway and replacement of the key; more attention should be paid to the fasteners for the eccentric, because long-term uneven force will cause unilateral wear of the coupling and loosening of the fasteners. ; Pay attention to whether there is any looseness in the connection parts of the parts subject to greater oscillation, even the bolts with spring washers should be checked frequently. Keywords: mechanical seals, mechanical seals, mechanical shaft seals